Variable-exhaust control.



J. K. DEEM.

VARIABLE EXHAUST CONTROL.

APPLICATION FILED DBG.14,1912.

Patented Sept. 8, 1914.

[NVENTOR Atloruey 1HE MORRIS PETERS CO.. PHoTo-L|T.'-l0.. wASHlNGrvN. n.C.

JOHN DEERE, GE RCEEEND, NDIANA.

VARABLE-ELEI.

idioms.

Application filed December 142. 1912. Serial No. '"36,'Z94.

To all fte/0m t may concern:

Be it known that l, Jer-1N K. Dunn, a citizen of the United States,residing at 1dichrnond, in the county of Wayne and State of Indiana,have invented certain new and useful Improvements in Variable ExhaustControl, of `which the following is a specification, reference being hadtherein to the accompanying' drawing.

This invention relates to means for controllingthe draft of the exhaustthrough the lire box in the furnace of a locomotive, and has for itsobject the production of an efficient adjusting means whereby theexhaust opening may be enlarged or reduced to control the passage oftheexhaust steam therethrough.

Another object of this invention is the production of an elicient capcarried by the exhaust stand which may be adjusted for reducing thedischarge opening through which the exhaust steam is adapted to bedischarged.

lilith these and other objects in view, this invention consists ofcertain novel constructions, combinations and arrangements of parts, aswill be hereinafter fully described and claimed.

In the drawings 1-Figure l is .a fragmentary side elevation of alocomotive. F ig. 2 is an enlarged vertical section of the adjusting capfor the exhaust stand. Fig. 3 is a side elevation of the cap detachedfrom the exhaust stand. Fig. et is a fragmentary side elevation of theinner closure sections of the exhaust stand.

By referring to the drawings by numerals it will be seen that thelocomotive isprovided with the usual exhaust stand l, and upon `theupper end of this exhaust stand is placed the collapsible cap 2. rllhiscollapsible cap 2 comprises an inner series of closure sections 3 and anouter series of closure sections 4. rlhe inner series of closuresections have their lower ends secured to the securing band 5 by meansof rivets 6 which rivets pass through the semicircular notches 7 formedalong the side edges of the collapsible sections 3. Each of tissecollapsible sections comprises enlarged base portions tapering towardtheir upper ends so as to allow the sections to be brought together neartheir upper ends and reduce the discharge opening. The outer series ofclosure sections are placed over the top of the inner series of closuresections 3 as illustrated in Fig. 2' so Specification of letters Patent.

Patented Sept. 8, 191e.

as to straddle the junction portion of the sections of the inner series3.. rlhe securing rirets (3 also pass 'through the apertures S formed inthe base of the sections of the outer series l and these series ofsections 3 and el will thereby be firmly held together. Rivets 9 passthrough the outer series of sections l and the inner series 3 asillustrated in Fig. 2 for firmly holding the sections 3 and i uponftheupper end of the exhaust stand l. il plurality of these rivets 9 securethe series 3 and of the closure sections to the stand l for constitutinga secure fastening means therefor. These rivets 9 also pass through theband 5 as illustrated in Fig. 2.

The. upper ends of the series of closure sections 3 and lare left freeand a conical hood 10 fits over the upper' end of these sections and isadapted to close the same as the hood l0 is drawn down longitudinally ofthe sections Band il. rlhis conical hood is provided with plurality ofdepending' arms ll which arms are connectedto the crank lever l2. saidcrank lever being mounted upon an operating shaft 13. A crank arm 14 isconnected to the outer end of this shaft 13 and this crank arm laisconnected to the operating' lever l5 by means of the link connection 1Gas illustrated in F l so as to allow the hood l0 to be operated upon thecollap sible or closure sections carried by the upper end of the exhauststand l. The outer ends of the crank at l? to allow the free movement ofthe arms l2 are slotted as indicatedy cranks l2 relative to thedependingarms 1l.

This shaft 13 is suspended from `the body of the locomotive.' Eachsection of the series 8 and el of the closure sections is formedpreferably of metal one-quarter of an inch in thickness and it will,therefore, be seen that when the conical hood l0 is drawn down closelyover the closure sections to the position shown in full lines inFig..2,the opening made by the top of the closure sections will be one`inch smaller than the opening in the upper end of the conical hood l0.rlhis will materially reduce the size of the discharge opening therebyreducing' the draft through the exhaust stand. lti of course, should beunderstood that these closure sections may be made of spring metal if sodesired, but the force of the exhaust through the exhaust stand will beof suflicient strength as to normally hold these closure sections in anexpanded condition relative to the exhaust stand as there vwill be aconstant outrool placed open the impor end el? the eihaoe'b stand.

lt Shoulcl he ilozoil hm the pi: is especially tio?. with e locomotivegeni device :icziplecl le he use iii coiiiiec emi eepccielly Where redih the couiiti'y les occur along tl e doeii-ed to obtain e Strong (loftthrough the liie he); `the e2;- pzizishle op is ont acted so as to.increase the (helft thiough the appel' emi of the eX- limiet Stood hetne soon eS the locomotive oi train, ha ieuchecl o 'llav Streich of ionclthe hood muy he opeiatcl ao permit the clip "no expand simil reduce the(ili'lin,` thei'ehy Saving :oiieilleral'ile feel in the opel-ation oi'.ithe engine.

rlChe exhaust etniiil if; placed cliieoI the :fszmxl olf the loc motivene is cleaily iii Fig. l, :mel iii view o *will efciehtly control thetheft e ghe sind; of the locomotive. ZhiS ce maiale possible for theire: son thothe effi limiet Steam will he (liecl am el hiough theexhaust stand eo ue to 'force the @team through toe Steel; oi thelocomotive amil in thie mzmhei ciente e llizlit therethi'ough, :uid etJche Some time cieote o. cl aft through the five-hoi;

Having thus cleseihecl the imfeifubion what is cloiiuefl :is new 'e l.In ai locomotive piioif'iflefl with o ficehoi, ai Stoel: ezliii'iel bySeid locomotive, of :11i exhaust control ceiiipi'ieing :i stand placedbelow smid steek.7 zi cap ioi'iiiecl of @Copies oi this patent may beobtain-5d for five cents each, by addressing the Commissioner l'lezi'hl,Sections, a hemel, seid flexible Secwe@ xetll secured o said lionel zuidtite e substantially' lcme-lile houeihe', e loiiiel Sliclahlyhieruit-esl ovei said xecvioiis and :iclep'led to moiv *v'eisicellyhe'feoii end alec ncl-.opted to (haw Y ende of Sections closely togetheime eoiieitote momie foi" regolati the g ldieclmi'gje opening el? gaieehuiil, Said ',leiilhle hectioiis heilig arranged 1iL :1h lencia: :malouter tici, sind outer tici' oi Sections over the joint of the SeveielSection5 e'e'eeii he inner tier of eecth he, thereby coheituing eyielclehle and .Lsii'lole tight eesiig for pie'veiitiiigij he escupe olismoke oir gee thiouggjh the Side@ of the casing :incl at the seine"'eiihe eonss'iiht w meme for elovine' a fifee leiei'el exp; ion

ld Sono.) (l

e of steam i i ,en simili7 and meong oi? mov e Said C lclehly mountedlfoiiiiel veiically oi' ju he iliefgeoce hetveeii 'the die l f d 1 iing; of Seial etzliicl and 'the hiver eiicl of Suid. Stoch.

2. l i a locoiiiotife iai-ov; j

e Sichel poemi .oel oelow mid ew, fl, A

hle menne carried hy said fi-:tfihcl loi iiicieming incl decreaoiiig theSize of tie clisehai mow-hie i opening; of aid Stond, vertical e'hleihewie, micl ineens foi' moving; f l p seicl weee, wie dischoilgeopening of' will et@ "l lowei ojlieiiihg' of Stoch.

lil testimony Wheieof Il hei'eiwto ellif; my Signature iii pi'eseiice ofno ltneeses,

Joli-iii llllitiiesses JESSE A. Emmy, JEAN R. LUPTON.

of Patents,

'l-feshingson, TD. C.

